ls
   ls -l
   ls -a
   ls -ltr
   ls -lahtr
   
mkdir
rmdir
pwd

cd
   cd ..

cat
less
more

[Ctrl-a <-> Ctrl-e]   # shorts-cuts del terminale (anche in R)

cp
mv
rm

zip

ps -a

cat 

wc
   wc -l

man   <-  Fondamentale per Help online, ad esempio "man wc"

| : 'pipe'

head
tail